1. Tunable in situ Near-UV Pulses by Transient Plasmonic Resonance in Nanocomposites
- Author
-
Husakou, Anton, Babushkin, Ihar, Fedotova, Olga, Rusetsky, Ryhor, Khasanov, Oleg, Smirnova, Tatsiana, Fedotov, Alexander, Sapaev, Usman, and Apostolova, Tzveta
- Subjects
Physics - Optics - Abstract
We propose a new concept for generation of ultrashort pulses based on transient plasmonic resonance in nanoparticle composites. Photoionization and free-carriers plasma change the susceptibility of nanoparticles on a few-femtosecond scale. This results in a narrow time window during the pump pulse duration when the system is in plasmonic resonance, accompanied by a short burst of the local field. During this process, frequency-tunable few-fs pulses are generated. We elucidate the details of the above mechanism, and investigate the influences of different contributing processes., Comment: 10 pages, 4 figures, corrected mutliple typos and inserted missing "a"/"the"
- Published
- 2023